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Nibble 300

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

Author: N.D. Poti


Edition: Model Aviation - 1996/09
Page Numbers: 32, 33, 35, 36, 37, 38, 41, 43, 44

1/2A GAS HAS TRADITIONALLY popular Free Flight events variety reasons including simplicity low cost small size Some same attributes apply generation recent surge FlJ Power event Miniaturization Schnuerle-port engine technology 06 049s has breathed new life small gas events heretofore dominated Cox Tee Dees Editors note F]] FAI eventthe international /2A classfor models powered engines displacement 061 cubic inches icc less AMA /2A Gas limits displacement 050 cubic inches Nibble 300 created fill void Potis Hangar small reliable fun model could perform dual role 1/2A Gas FlJ Power process conception first flight spanned three years dual role Nibble 300 revolves around CS 049 engine powerful Doug Galbreath-modified CS procured note Galbreath no longer offers engine Research experience base power plant resulted selection 300-square-inch wing point progress sidelined other priorities interest rekindled next winter Comparison aspect ratios tail volume coefficients authors successful B C Gas Niblites lead final planform layout Acquisition fuselage system Ken Oliver 2213 El Cejo Dr Rancho Cordova CA 95670 construction flying surfaces accomplished second year before another hiatus put project hold again concept finally brought fruition 1995 completion model first flights development model quite lengthy standards its rise prominence Nibble 300 captured new Cat III 1/2A Gas record during its first contest epitomizing term right off board record accomplished Muncie flying site prove no fluke Although flying during its first contest 32 Model Aviation t The well-worn original model WrightPatterson AFB Dayton OH Nibble broke its own Cat Ill record season hampered several minor mechanical glitches associated newsystem failures model surpassed its first record establish current mark 2719 design has shown inherent consistency atypical models flies equally well both calm windy conditions arrow-straight power pattern unparalleled transition glide through bunt breathtaking models light weight associated low momentum yield minimal damage crashes welcome departure what am accustomed FlC resiliency design demonstrated during 95 USOC FlJ event Nibble 300 crashed floodoff malfunction five minutes before start round Model repairs including piecing together two wing halves commenced immediately model repaired trimmed proceeded score max during same one-hour round much astonishment Hardy Brodersen casually observing activity end flying season model riddled patches repairs yet retained high level consistency performance Nibble 300 has delighted its creator should also delight CONSTRUCTION following sections assume builder familiarity basic construction techniques therefore special unusual procedures details will covered Success Free Flight event involving small models relies greatly lightweight construction adequate strength came achieved part cut light /32 sheet take time find light piecedont settle heavy piece /32 light piece A6 020 wire hook required resist temptation use paper clip Small things add up big weight gains Minimize glue wherever possible Make joints tight gap filled glue can weigh 10 times weight balsa replaces Simply putting second coat thin cyanoacrylate CyA glue joints can add much two grams weight winga 5% increase total wing weight learned lesson recently will never again double-glue anything As former free-fighter sometimes philosopher Norman Getzlaff once said way ensure part will add much weight leave part off altogether flying surfaces built straight surface glass board etc big enough mount wing panels plans stuck work surface lightly spraying contact adhesive such 3M 77 cover sheet waxed paper sprayed its underside placed over plans Finally mist coat 3M 77 sprayed top waxed paper last layer adhesive holds balsa pieces place during construction eliminating use pins sandwich plans waxed paper and/or balsa framework can separated softening 3M 77 heat hair dryer familiar procedure practice scraps will ensure dont ruin set plans using too much adhesive September 1996 33 Above author prepares flight Gas 1995 Nats Muncie Photos courtesy author Grapho Design Carla Kunz Wing The Nibble 300 has five-section wing uses logarithmic-spiral airfoil five panels eliminate center joint highest bending stress concentrated Multiple dihedral breaks allow easy tailoring wood size densities Note follow wood sizes indicated plans tapered closed box spar carries majority bending torsional loads Center main tip spar wood should 8-10 68 4-6-pound/cubic foot density respectively other wing pieces simply provide defines airfoil should constructed 4-6-pound wood first glance wing construction appears overwhelming therefore will covered some detail Begin cutting sticking wing spar bottom leading edge trailing edge pieces building plan Assure tightfitting dihedral joints glue time Use 8% logarithmic spiral curve cut straight ribs spiral has unique characteristic length curve emanating source will geometrically similar Ribs various lengths September 1996 35 Bunt auto rudder mechanismplan has details Carbon pedestal-type stab mount provided Oliver fuselage Rudder built flat plans sanded airfoil shape Movable portion has music wire torsion rod Easy Hinges Stabilizer has blunt leading edge avoid over top power pattern Use very light balsa cover -mu Mylar Four 2-56 screws retain engine mount Lightening holes mounting ring form epoxy buttons strength CS 049 mounted custom radial mount efficiency weight savings over commercially available units Built-up pylon butt-glued top carbon fuselage tube Seelig Minicombo handles engine bunt rudder DT functions Box spar carries majority wing loads Diagonal braces contact spars additional strength support NO OCR TEXT required tapered planforms can easily made using characteristic Cut six ribs full-size pattern shown glue place wing center section thick CyA rib tapered portion wing cut fit Shorter ribs use main rib notches pattern full-size rib placed plan desired length marked rib cut size straightedge placed bottom short rib desired leading edge trailing edge heights rib sliced placed plan mark desired main spar location produces rib similar shape yet shorter thinner main ribs Repeat procedure rib tapered part wing Once comfortable trim-to-fit method complete set ribs can quickly produced Cutting ribs pairs will also save time ribs except dihedral joints glued place using thick CyA panels stuck plan use long sanding block out minor imperfections rib shapes five panels removed plans joined other proper dihedral angles partially built wing structure will very flexible panic Remember side box spar place time CyA straight dihedral ribs place Lay structure flat consecutive panel glue main spar tops place time turbulator spar locations marked ribs notched spars spars glued place Complete wing panels same manner Now wing has taken structurally sound characteristic Holding wing lap install main-spar vertical webs dihedral gussets Position half-depth cross braces Mark trim cross-braces thickness trailing edges match straight ribs already glued place proper fit cross-braces just touch turbulator spar bottoms Gluing joint adds considerable strength Glue place cross ribs wing structurally complete Carve leading edge shape final-sand top bottom wing prepare cover Apply coat covering adhesive use Sig Stix-It allow dry overuight cover light clear white-appearing Micafllm Dying inside Micafilm Higgins Permanent Marker available officesupply stores provides colorful lowweight variation otherwise white finish Sealing Micafilm joints inch strip MonoKote will greatly increased durability seams Use care evenly apply shrink Micafilm introducing unwanted warps During final shrinking process ensure tip washout indicated plans completed wing should Tliqibqll Glow Plugs Introduces NEW SUPER COOL Plug Hi Temp Insulator $209 addition FIREBALL R/C IDLE BAR plug $209 Hot & Standard Non-Idle Bar plugs still $169 Swanson Associates PO Box 151 1948 Wayne NJ 07470 fair prices sensible quantities fas teners need model building call write fax free catalog Micro Fasteners800-892-6917 110 Hillcrest Road908-806-4050 Flemington NJ 08822fax 908-788-2607 SCALE CATALOGS SPPS 160 SupersJe Conslniction Plan$800 SPPS 120060 Documenfatm Ptnt 3Vs$800 ASP Model Araat Coosfrudion Plara$800 ASP SJeAJrcraft Dra\Mngs 3Vs$800 Postpaid USNCAN Add $500 Ea Air Overseas 1/5 Sc WINNIE MAE 100 2 Pc Wing Plans $40 00 pp Jim Pepinos SCALE PLANS & PHOTO SERVICE 3209 Madison Ave nsboro NC 27403 VisaMCPHONE/FAX 910 2925239 IJLTIMATESPORT RC I255 East Ashland/PO Boa 727/Soda Springs Idaho 83276 UtlitteE 10-300 inlEt1208-5473742Pa F,hlIaSOndSASE LOCKHEED VEGA September 1996 37 get units remember! NOT JUST CHARGERS-COMPLETE AUTOMATIC BATTERY MAINTENANCE SYSrEMS Ca Ra Products 21 Urban P0 Box 436 Paineaville OH 44077 216-639-8274 Hrs 9-12 2-7 Central Ttme SASE information ers inquiries invited Long-EZ Looking something unique ial canard pusher may look strange dont worry flies just like conventional airplane wont stahl 4-40x1/2 socket caps sell S435/100 alloy steel S665/100 stainless S150/50 aluminum piece tilergiass luselage wing ooonoirgiasa canopy cowl wheel pants Foam c... aings canard Includes hardware $185 pan 40 engineslincuda shipping continsatol US Kerr Aircraft PO Box 2554 Newport RI 02B40 401 -647-7510 E-mail kerrailg@nficom F iI7AIDwI/kL 77wingSpan g loch5 iAlsIbFIiaowaighGiassp,aco,i Foa FlpingSoioc AicnnLodingGao ClaanConopyAoilobla Bciidas Kit S255~ SheotadiiitS365~Osico Shoatad Kit $495 Bully 12 LS Long stroke Bully 12 PR Prasoldon Race CALL NOW ON OUR 800 LINE Bully 12 LS Price $398Bully 1 2 PR Price $298 Both Power Machines Stock Bully 12 LSBully 12 PR Th Bully 1215 Has thrust compared against Bully 12 PR has thrust compared against newest major four stroke usIng 15 35 percent WEBRA Speed six different propellers nitrofuellnalloasestheBullyoutperformedthe al4XlOtoal6Xl2lnallcasestheBullyout other engine 5 20 Percent thrust did performed WEBRA 5 18 percent best 16X14 ends lOXiS APC Propeller thrust 16X8 IeXiO APC propeller Bully 12 IS designed high torque low RPM propellers up 18 inch two stroke low maintenance hIgh performance engine dual plug reliability bulit pump arid regulator Bully 12 PR isa full race engIne flyers want fastest forward speed special aircraft two stroke also low maintenance high performance engine dual plug reliability bulit pump regulator Bully 12 IS rear exhaust engine available accessodes header tuned pipe muffler Acceasoiles 4 mufflur types soft mount BULLY engInes lImitedV Inc 3002949506Z production may ordered direct UAV Inc5OOAM-6OOPM Mon-Sat Pacific TimeiS PO BOX 1543 OREGON 97709 E 541-382-5409 FAX 541-385-0117 safe save money expensive fuel costs See local retailer ADVANCED AERO FUELER Safely seals open fuel containers security airtight quick lock fittings r .Keeps fuel fresh day made Advanced Aero Fueler will reseal open leaky fuel containers use highest quality custom extruded mini coiled tubing exclusive scientific grade TwistKonexxN quick lock fittings Based double tapered vibration resistant design nylon half turn quick lock fitting will safely seal containers providing years faithful service Advanced Aero Fueler will help fight moisture absorp tion evaporation possible spills could lead fires explosions Bottles cans Gas Glow Use approved containers gasoline use electric manual pumps $1495 $400 shipping CA add 825% tax Kit includes cap scientific grade poly tubing 6 ft mini coil exclusive TwistKonexx airtight quick lock nytun fittings Complete hr Order Phone Fax 800 273-AERO 2763 W Ave L Suite 295 22nd Century Lancaster CA 93536 Pendnn Cop~gh 22nd Cenry 1996 trek Catalog #37 XX~jesThSpring 1996 1eflIts Rubber Power X 9C02 GNot7 111jfl CSVWonder Peck-Polymers Areographics Nowlen Aero West Wings Lee R/N Send $400 Catalog #37 New items 1996 PO 130X 710399-MA YSantee CA 92072-0399 Phone 619 448-1818Fax 619 448-1833 weigh 54 grams adequately strong application Tail Surfaces stabilizer rudder built over plans using 3M 77 hold-down technique very little load structures therefore 4-6-pound wood should used Note blunt shape leading edge stabilizer has determined stabilizer leading edge radius can directly linked over top phenomenon bluntness increases drag however increase compensated times over consistent power pattern Carefully drill align bunt holddown piece /s plywood piece glued stabilizer top surface bottom left open allows maximum clearance glide bunt posts rudder built plans no airfoil shape symmetrical airfoil developed carving sanding once structure complete Easy Hinges secure rudder tab buried music wire torsion rod provides movement glide position Rudder position stops provided 2-56 socket-head bolts bolts secured fuselage part formed ood piece rudder tab position must very positive consistent power adjustments Both stabilizer rudder covered mil Mylar Upon final shrinking covering ensure warp-free surfaces Fuselage The original Nibble 300 crashtested Oliver boom several occasions incident attesting fuselages superior strength fuselage survives crash model can generally repaired field flying can continue same day Ken also provides insert doubler serves reinforce mount timer small lightweight stabilizer rest also provided system makes short work fuselage pylon built butt-glued carbon tube 3M DP-460 epoxy Editors note industrial-grade product available through 3M distributors Drill some /s holes top fuselage will mate pylon epoxy will run holes form buttons glue help hold pylon place fillet microballoons 5minute epoxy reinforces loint Both motor tube tailboom will have shortened Nibble 300 nose length left longer indicated plans during initial build-up final length determined assembly nearly-complete model long nose determining Center Gravity CU Trim nose length until proper CG obtained engine hold-down sleeve secured inside front tube using DP-460 sleeve interfaces customturned backplate provides very 38 Model Aviation t engine mount Doug Gaibreath sells similar heavier system mounting ring inserted fuselage has lightening holes epoxy fills holes acts buttons lock ring carbon tube have used style mount 049-40 engines has survived severe crashes rudder stabilizer rest VIT Variable Incidence Tailplane mechanism holder secured using 3M DP-460 Rudder alignment critical ensured using calipers align leading trailing edges Stab tilt provided angular position stabilizer rest Attach wing pylon measure correct tilt glue place Begin finishing front fuselage three coats Super Poxy filler sanded thoroughly between coat Approximately 80% filler coats should removed thorough sanding Spray final coat filler sand lightly 600-grit paper before spraying final coat color original Nibble 300 used aluminum-colored Super Poxy matched tailboom color quite well Use Super Poxy paint sparingly can build up weight quickly light topcoat thinned clear Super Poxy will give fuselage brilliant shine Final Assembly point model 95% complete avoid urge rush final assembly rigging brain model timer should noted significant percentage models weight Seelig Minicombo timer Plastic Tomy-toy style timers considered application rejected basis reliability auto-surface functions bunt floodoff timing critical Cat III engine runs control lines made lightweight monofilament very little load lines small model Lightweight monofilament very stretchy experience must gained utilize successfully stretch eliminates requirement springs variable temperature original Nibble 300 flown season breaking changing line can done successfully Since no tailboom joint rigging accomplished threading feeder line through rear fuselage front exit holes forward timer compartment made possible lack bulkheads aft timer compartment two feeder lines joined used pull final lines Check variable functions 20 times shop Become comfortable adjustments stabilizer rudder Set initial power position 00 wingto-stab alignment Add 1/s-inch trailing edge negative up initial glide position Check dethermalizer DT angle set timer two-second floodoff quick DT just after floodoff assembly repair job calls extra strength call ProsGreat Planes Pro Epoxies formula penetrates deep give durable lasting bond 6-Minute Epoxy sets quicklyperfect making repairs field 30-Minute Epoxy offers uniquely consistent cure time know its safe proceed assembly 45-Minute Epoxy cures slowly allowing extra time penetrationand forming especially strong bond - Epoxy Finishing Resin makes durable laminations wood fiberglass fuelproofs staining Its ready use after easy 1-to-i mixing Non-toxic virtually odorless Pro Epoxies include 9 oz resin hardener informstion snd tet lorstion dealer nearest please call 1-800-682-8948 snd mention code number 048z Distributed Exclusively Ey GREAT PLANES MODEL DISTRI5DTOES COMPANY Po Eux 9021 rhpsign IL 61826-9021 OCOpyriptis 19553072155 September 1996 41 Fgr peuM quq hsm ihtkftsin WIRE BENDERS No 322 No 323 K&S ENGINEERING 6917 W 59th St Chicago IL 60638 312 586-8503 SEND $100 FOR PRICE LIST AND CATALOG No 324 Belabor final details ensure successful first flying session rushing meet some imminent contest re evaluate schedule No can afford time rebuild because avoidable error Flying Begin first flying session series test glides stab set glide position power position objective floating glide gentle right turn shallow straight dive under power unsure procedure take trimmed model handtoss power position develop confidence idea shallow dive Run engine several times ensure consistency test two-second floodoff setting Flood-off reliability essential initial flights since power trim has yet obtained Launch first flight straight up under full power followed procedure have no mechanical failures event-free first flight guaranteed Gradually increase engine runs trimming straight-up climb slight turn right purpose roll position model thermal find generally located right launch position first gliding flight done DT set 20 seconds allows DT plenty altitude glide trim grossly off malfunction occurs power-to-glide transition initial /2A record set Potis Hangar 57 x 27 prop running 50% nitro 27000 rpms engine difficult tune configuration Exhaustive rework fuel system head clearances proved fruitless Noted FlC flier Ed Keck discovered unloading engine trimming prop diameter 54 inches provided consistency being desired reworked prop increased rpm 28500 Observers studying models performance throughout flying season stated significant increase altitude attained second propeller engine combination smaller-diameter prop used set second record Auto Plug Way Valve Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch ID Price $495 FOURMOST PRODUCTS 5033572732 EPLACEMENT GUARANTEEI 9ODAYPASEZiZZZ] hBS5 ae6 ~SBoz fuslproof ripatop sail panels ly visible fluorescent color comhos Fiberglass part Computer generated assembly manual CAD-ihawn three view \i17 perspective iapanls Span 70 Length 34 Weight 35 lb RTF Wing area 670 sq Wing loading 135 ozIsq ft Radio 3 channels Engine 25 40 W1NLtVAP /c 20F Hudson Harbour Poughkeepsie NY 12601 E-mail RCWindward@aolcom Raical 2charnel aerobatics WARDTROL TUF-1 KitOnly 51 3995 Shipping & Handling$495 Oemo videos$925 FREE BROCHURES information tO 914 495 -USd19 24 order credit card CALLhours Hardware included NY state resEdents add 725% DONT TRASH IT AFTER YOU CRASH IT IF YOUR FAVORITE BIRD HAS HAD ACCIDENT AND NEEDS NEW WING CHANCES ARE WE HAVE IT FOAM WINGS ARE THE EASIEST AND FASTEST WAY OF GETTING BACK IN THE AIR WE HAVE OVER 400 KIT AND PLAN WINGS IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU CANT AFFORD THE TIME AND EXPENSE TO BUILD ONE UP FROM SCRATCH CALL US NOW J14A4 MEG 306 E SIMMONS GALES8URG IL 61401 SEND $500 FOR CATALOG WITH DATA SHEETS PHONE 309/342-3009 September 1996 43 / U Airtrax Almost Ready Cover ARC Sport Series Aircraft MAT proud announce return Airtrax series High Performance Sport aircraft New manufacturer New lower price Same great design Airtrax wide speed performance envelope virtually unlimited aerobatic potential rock solid tracking characteristics set Airtrax apart other plane its class Quick build Easy fly land Airtrax makes average sport flier look like pro Made USA Sport Series features 750/0 Pre-built Solid Balsa Ply Construction Pre-sheeted Foam Wings Built Up Fuse Built Up Tail Surfaces Landing Gear Instructions Airtrax 40Airtrax 60/1 20Airtrax GSAirtrax Aggressor wing span 51wing Span 72wing Span 84wing Span 84 wing Area 500 sq inwing Area 800 sq inwing Area 1280 sq inwing Area 1280 sq weight 4-5 lbsweight 65-9 lbsweight 15-19 lbsweight 19-21 lbs Engine 35 45Engine 61 120Engine 18- 40 Gas/Glow Engine 30-42 Gas 44 Model Aviation 4A second wing has built featuring 9% mid-section airfoil logarithmic spiral tapers 7% tips mid-section thickness increase associated strength increase allowed lighter structure Complexity weight reduced omitting cross-ribs can added later required wing weighs 48 grams Thisyet-unproven design change will evaluated backto-back testing wings common fuselage Other design changes might considered smaller tail volumes shorter tailboom less stab area higher wing aspect ratio fuselage front tube could made lighter through extensive sanding possibly convincing Ken Oliver use less carbon lay-up Weight could also reduced Tomy toy-derivative timer application FIJ model 061 engine design should scaled up 380 square inches Most Kinkos operations have engineering service can accept 40-inch drawings can perform enlargement reductions nominal cost makes quick work scaling size Nibble 300 will make impressive addition stable power models have made attempt accurately document design duplicate models can built special thanks extended Don Simpkins computer skills developed unparalleled plans set Nibble 300 has great potential hands experienced flier can achieve four-second engine run 150-second max easily Both competitors spectators enjoy spectacular performance model collection Nibble 300 photos will assembled please send photo model Both will pleased once Nibble 300 airborne collecting hardware Thermals an D Poti 5695 Marshall Rd Dayton OH 45429-6022 umi ora a&ii inciuued Seven diierem shapes prop nuts machined bar stock cNc lathe available Brass Aluminum popular thread sizes Dimensions 7/8 dia 2223 mm x 1 long 254 mm Model No L-R 03 01 02 04 07 05 06 Order direct dealer inquiries welcome King Industries 2924 E Eaton Dr Terre Haute IN 47802 Tel 812-299-9542 812-299-9476 Email flyby@hollicom

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